Placeit - Generate realistic product shots in seconds
Full Page Screen Capture - I built a Chrome Extension that allows you to save a screenshot of an entire webpage as an image
Magic Mockups - Place your product screenshot in real-life environment.Free iMac and iPad mockups ... read more.
Webshot - Free and Open Source screenshot website service
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
App Screenshot Maker - Design marketing screenshots for your app in minutes